From a sample of 25 items,a sample standard deviation of 4.56 ounces was just measured.What value should be used for the population standard deviation?
A)0.91 ounces
B)4.56 ounces
C)none,since the population standard deviation cannot be estimated
D)0.18 ounces

Question

Quizplus · Accepted Answer

The sample standard deviation is the best estimate available for the population standard deviation when the population standard deviation is unknown, so 4.56 ounces should be used.

From a Sample of 25 Items,a Sample Standard Deviation of 4.56